// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.14-3-5
description: Object.keys must return a fresh array on each invocation
---*/

function Test() {
    var literal = {
      a: 1
    };
    var keysBefore = Object.keys(literal);
    assert.sameValue(keysBefore[0], 'a', 'keysBefore[0]');
    keysBefore[0] = 'x';
    var keysAfter = Object.keys(literal);

    assert.sameValue(keysBefore[0], 'x', 'keysBefore[0]');
    assert.sameValue(keysAfter[0], 'a', 'keysAfter[0]');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
